Tool holder and tool



Jan. 29, 1929.

B. H. DREES TOOL HOLDER AND TOOL Filed .July 8, 192s FIG. B

HTTORNEY.

VPatented Jan. 29,1929.

BERNARD H. nanas,

or eincinnar, onto. f

Toor. HOLDER Ann'f'rooi..

Application led July V8,

The obj ect of myy invention is to produce a holder for tools and a tooll to be held by said tool holder, which shall be cheap of manu- 4.factura very simple in construction and highly eliicient in use, which possesses a high degree of utility.

It is well known that in working' on metal in a lathe, planer, shaper and machinery of a kindred type, it is necessary to use tools, which have differently formed andshaped cutting edges, in order to produce the different kinds of cuts necessary to fashion the piece of metal being' worked upon to carry out a certain structure or design. As a rule, these tools and the elements which hold them in the Y machinery, are generally made integral, and

practically, and this metal, which is of an expensive character, is lost.

It is also very vexpensive to have a large number of these tools on hand at all times,

for making the dierent cuts and impressions on the metal being worked upon. They arealso very expensive, take up considerable room and are inconvenient in handling.

It is the object of my invention to obviate these diiiiculties by producing apholder into` which separate tools are placed and held for y doing work. It will be readily understood that in this way theholder for the tools is always of the same length and shape and all the ytools are always held in the same way.

The tools themselves are small, and large numbers ofthem of varying styles can Vbe forged into shape, yand any one needed for the particular work to-be done can be placed into the tool holder andheld firmly and rigidl ly in position. lllhen the work is done for which this particular tool was used, another style can be placed into the tool hoider, after the onetherein has been removed.

The tools in which the holder and tool are made integral are made by hand and are expensive, whereas myy tool parts can be made as forgings and are cheap and handy.

The various advantages and featuresofy my invention will' readilyvbeconie apparent upon reading t-he annexed specification and claim.` 'y

rIn the accompanying drawing, forming a part of this specification:

Fig. 1is a side View of the toolholder 192s. semaine. 121,103.-

showing one tool in position, parts broken away, to show construction,

Figs. 5, 6, and 7, are each isometric views i of several of the different forms and shapes of tools to beused with the tool holder.

The tool holder is formed of thebodypart 1,

having the recess 2, intok which the tool holder element'' slidesand fits; this element also passes through the clamp 4, and bears against the tool 5 at the point 6, and the yrecess 7 of the element engages a tooth 8 of the tool 5. VlrIhe clamp 4 has bolt 9 secured to its lower part and the nut 10, which bears against the lower edge 12, holds the element 3 firmly in position. y,

' A recess 14 is provided in the body 1 to se-r cure the clamp 4 against forward or backward play or movement, while the element 3is held y against any lateral movementor playby recess 2 in the body 1. Thisbody 1 has a forward extension 15, vhaving a groove 16, inA

whichthe -V shaped portion 17, of the tool fits and rests and is held iirin `by the element e 8 against play of any kind in any direction.r

and is locked into position. In order to adjustthe tool 5, the nut 10 is backed up, which will allow freedomjtoelement 3 from clamp 4. Y The tool 5 is then placed in thegrooveV .Y 16, and under the element 3. The'nut 10 is Y then drawn up tight, holding tool 5 firmly by portion 6, bearing down onA said tool 5, through the clamp 4.

The tools shown in Figs. 5, 6, and 7, are the same in construction and contour at thcfclamping-end so that they will all be interchangeable and all fit the same holder, while the'cutting edges 18 can be of anyfdesired4 shape or contour.

' I have only described one form of tool holder, but I can change and modify same so long as the said changes and modifications' vany'kind or shape of cutting edge thereon,

however the rear end of each tool is fashioned similarly in order thateach one may iit the 55 n Fig. 2, is a plan view of device shown in holding` means and be locked into rigid operating,r position. l

l/Vhat I claim es new and iny invention and desire tosecnre by Letters Patent is:

In L device of the character described, a

tool holder having` a guide hole, a groove, and f a recess between the hole and groove, a clamping bolt having an ape-rtnred heed Working in Y the recess, e tool resting on the holder and lfhaving a projectingportion extending into said groove, a retainer extending. through the apertnred head of the bolt and slidable in Said hole, and interlocking surfaces on the tool land retainer, adapted to be pressed into engagement by the bolt'vvhen the latter is tightened.

ln testimony whereof, alx my Signature at the city of Cincinnati, county of Hamilton, and State o Ghio, this 30th day of June, 1926.

BERNARD ILDREES; 

